package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.pojo.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 分类管理
 */
@RestController
@RequestMapping("/category")
@Slf4j
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 添加菜品
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("新增分类成功！");
    }


    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize){
        log.info("page:{},pageSize:{}",page,pageSize);
        Page<Category> pageInfo = new Page<>(page,pageSize);

        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.orderByAsc(Category::getSort); // 升序排序

        categoryService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 修改
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        categoryService.updateById(category);

        return R.success("修改成功！");
    }

    /**
     * 删除
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long ids){
        log.info("要删除的id:{}",ids);
        // 对于某个分类进行删除操作。当分类关联了菜品或者套餐时，此分类不允许删除。
        categoryService.remove(ids);
        return R.success("分类信息删除成功！");
    }

    /**
     * 根据条件查询分类数据。
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        log.info("category:"+category);
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(category.getType()!=null,Category::getType,category.getType());
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);// 先用sort升序，再用更新时间降序。
        List<Category> list = categoryService.list(queryWrapper);

        return R.success(list);
    }



}
